Gustav adolph buchholz



'interi KJiatre GUSTAV ADOLPH-BUOHHOLZ,OF REGNTS PARK, ENGLAND.

.Letters Patent No. 102,764, dated .May 10, 1870.r

IMPROVEMENT IN HULLING-MACHINBS.

The Schedule referred to In these Letters Patent and making part of the same.

To al-lwhonz may concern:

Be it 4known that I, GUsTAV ADOLPH Boon- HOLZ, o f Regents Park, in the county of Middlesex, England, have invented a new and improved Hnlling-Machiue; and I do hereby declare that the following is a-full, clear, and exact description thereof, which will enable others skilled in -the art to make and use the same, reference being had to the accompanying drawings forming part of this specification.

This invention 'relates to improvements in the hor- Aizontal or longitudinal hulling-machine forwhich I obtained Letters Patent in Great Britain, dated 5th' January, 1865 the object being to reduce the cost of its construction, and increase its eticiency, and consists, instead of making the outercase and the drum which it contains conical, as heretofore, in making both cylindrical, and mounting the central shaft, which carries the drum and supports the case iu position, so that it vmay receive any desired inclination taken in the linerl 2 of g. l; and

Figure 4 is an elevation of th'e delivery-end of the machine.

A A are standards, braced together at top and bottom, and forming a fixed frame, within which is mounted a movable frame, B B, carrying a cylinder, 0,'and the mechanism connected therewith.

The frame B is fitted with trunnions at one end, to allow it to rock in the fixed frame A.

The other end of tbe frame B is capable of receiving a vertical adjustment through a regulating-screw attached thereto, and pendent from the fixed framing.

The cylindrical case I cast, by preference, in tla-uged sections, as shown iu fig. 2, and I bolt the same together.

Each of these sections will be cast with two, three,l or more rectangular openings, to receive at their inner peripheries either panels ot' Wire-gauze or perforated inetal, for admitting air into and allowing of-thc discharge ot' bran from the case g" or the openings may be -tilled with steel blades `tittcd according to my patent, dated November 23,1869,No. 97,039; or they ymay receive alternately Yentluting surfaces and blades.

Between these panels, and on the inner periphery of` .tbe case, I fit ribs or blocks of vulcanized India rubber, d d, or its equivalent, as frictionfsurfaces, the protrnsion'ot' which I regulatelby means of radial screws e e, access to the heads of the screws, being.

obtained outside the case. A

XVithiu this cylinder O, I- mount a cylindrical drum, I), which 'is made fast to a longitudinal shaft, E, having its bearings in the adjustable flame B.

This drum l) is' cast in sections, and with annular rebated ribs, d, on its periphery, to lreceive steel blades, (12, with lwhich it is. covered from end to end.

These sections are strung on the central shaft, and keyed thereto, and they are connected 'together4 by screw tie-rods f f, running through all the sections.

One end of the shaft is fitted with a driving-pulley,4

F, through which a rapid rotary motion is imparted to the drum by means of a band i-om any 'prime mover. l

A slow rotary motion inthe .Opposite direction is also given to thecas'e, to increase the eiliciency ot' the' machine. -Q

vThe pulley for driving the case is shown at G, and it is carried by an endplate, G', made fast to the case.

This endplate is cast with hollow boss, through which the feed isi-delivered to the case.

A fixed central feed-plate, g,'is tted to this boss, and through an opening in 'this plate the feed is delivered to the machine from a delivery-pipe or hop per', I. @U/l 4 Then the machine is in action, the delivery-end (that opposite to the feed-end)lis depressed by turning the hand-wheel H, which` is fitted to the vertical screw h, by which the frame B isv suspended at its' adjustable end.

Ourthe depressiou'of the central shaft, th'e'graiu will -then 'take a helical course through the machine.

The greater the depression of the the quicker will be the delivery. j -\Vhen, therefore, the actiou`of the machine upon the grain is required to be increased, the shaft will have to be brought nearer to the. horizontal, and rice versa.

The machine may he run until the elliciency ofthe blades has appreciably deteriorated by wear, when they will require to be changed.

Slight wear will show no depreciation, and considerable wear may be met by increasing the supply of grain.

Having thus described my invention, i

I 'claim as new and desire to secure by Letters Patent- 4central shaft,

1. The i'ubbcr blocks 1,combiued with the wire Thisspecjoation of my invention signed by me this p anels and case, as and for the purpose decribed. 24th day of J anual-y, 1870. l 2. The vertically-adjnstable rocking frame B B, G. A. BUCHHOLZ. combined with a cylinder, C, having two or more rectangular openings, as' and for the purpose dei Witnesses: scribed. FRED. WALKDEN,

3. 'liio vertically-ndjnstnble soaking frame B B y 66 Chancery Lane, Landon. and cylinder O, combined with the drum D and iongi W. N. WYNNE,

`24 Royal Exchange, London.

tudinal depressible shaft E. 

